Developer Tools · head to head
Restate vs Splunk Enterprise Security
Restate
Developer Tools
Durable execution engine in Rust with a free tier and low-latency workflows
- From
- Free
- Free plan
- Yes
Splunk Enterprise Security
Cybersecurity
The platform for operational intelligence
- From
- On request
- Free plan
- No
The short version
- Only Restate has a free tier, so it costs nothing to try first.
- Each has a real cost: Restate the runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.; Splunk Enterprise Security splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- They diverge on capability: Restate covers Durable execution, Splunk Enterprise Security covers Security monitoring.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Restate and Splunk Enterprise Security actually diverge.
| Attribute | Restate | Splunk Enterprise Security |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | Per month by durable action count | subscription |
| Free tier | Yes | No |
| Platforms | Linux, macOS, Web | Web, Api |
| Category | Developer Tools | Cybersecurity |
| Founded | Unknown | 2003 |
Identical on both: user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Restate
- Durable execution
- Virtual objects
- Single binary runtime
- Multi-language SDKs
- Workflows and sagas
- Restate Cloud
Only in Splunk Enterprise Security
- Security monitoring
- Incident review
- Risk-based alerting
- Threat intelligence
- Investigation workbench
- MITRE ATT&CK mapping
- Automated response
- Compliance reporting
What people use each for
The jobs each tool is most often brought in to do.
Restate
- Payment or order flows where a crash between two external API calls must not double-charge or lose the ordernot Splunk Enterprise Security
- AI agent loops that call tools over minutes or hours and must survive a deployment mid-runnot Splunk Enterprise Security
- Replacing hand-rolled retry, idempotency key and outbox code across a set of microservicesnot Splunk Enterprise Security
- A small team that wants durable workflows without operating a Temporal cluster and its databasenot Splunk Enterprise Security
Splunk Enterprise Security
- Running a security operations centre on Splunk indexed log datanot Restate
- Correlation searches, risk based alerting and incident investigationnot Restate
- Compliance reporting from pooled security telemetrynot Restate
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Restate
- The runtime is under a Business Source Licence rather than an open source licence, so building a competing managed offering on it is prohibited and some procurement functions will reject it on licence grounds alone.
- Restate Cloud jumps from a free fifty thousand actions straight to 300 US dollars a month for twenty million, so a workload sitting at a few hundred thousand actions pays enterprise-shaped money for hobby-shaped volume.
- It is a young project against Temporal’s established base, so hiring engineers who already know it is unrealistic and the answer to most questions is in the docs rather than on Stack Overflow.
- The programming model requires structuring code around durable handlers and virtual objects, which is a genuine rewrite for existing services rather than a library you add.
- The single-binary simplicity that makes small deployments cheap also means fewer operational knobs at very large scale than a system designed as separable components.
Splunk Enterprise Security
- Splunk Enterprise Security is licensed separately from the Splunk platform, so a SIEM deployment needs both
- Splunk publishes no rate for Enterprise Security and directs buyers to contact a pricing expert
- UEBA, SOAR and automated threat analysis require the Premier edition rather than Essentials
- The platform underneath can be billed by ingest volume, workload or activity, so the total cost depends on a pricing model chosen at contract time rather than a list price
Pricing, plan by plan
Restate
Free- FreeFree
- Fifty thousand durable actions per month
- No credit card required
- Community support
- Starter$300/month
- Twenty million actions per month
- Two hundred actions per second, bursting to one thousand
- Twenty GB storage
- Pro$1000/month
- Fifty million actions per month
- Five hundred actions per second, bursting to two thousand
- Fifty GB storage
- Enterprise$undefined/year
- Negotiated volume
- Twenty-four seven P0 support
- 99.99 per cent SLA
Splunk Enterprise Security
On request- Workload PricingFree
- Pay per compute
- Flexible scaling
- All features
- Ingest PricingFree
- Pay per GB ingested
- Predictable costs
- All features
- Entity PricingFree
- Pay per monitored entity
- Security focused
- All features
Which should you pick?
Choose Restate if
- You need durable execution.
- You want to start without paying.
- You work on Linux, macOS, Web.
- You also want virtual objects.
Choose Splunk Enterprise Security if
- You need security monitoring.
- You work on Web, Api.
- You also want incident review.
Questions people ask
- Is Restate or Splunk Enterprise Security better?
- Neither clearly leads. Restate starts at Free and Splunk Enterprise Security at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Restate or Splunk Enterprise Security?
- Restate has a free tier; the other does not. Paid plans start at Free for Restate and On request for Splunk Enterprise Security.
- Does Restate or Splunk Enterprise Security run on more platforms?
- Restate runs on Linux, macOS, Web. Splunk Enterprise Security runs on Web, Api.
- Can I use Restate for free?
- Yes. Restate has a free tier, so you can try it without paying. Splunk Enterprise Security starts at On request.
- What is Restate best used for?
- Restate is most often used for payment or order flows where a crash between two external api calls must not double-charge or lose the order, ai agent loops that call tools over minutes or hours and must survive a deployment mid-run, replacing hand-rolled retry, idempotency key and outbox code across a set of microservices, a small team that wants durable workflows without operating a temporal cluster and its database. Of those, payment or order flows where a crash between two external api calls must not double-charge or lose the order and ai agent loops that call tools over minutes or hours and must survive a deployment mid-run are not what Splunk Enterprise Security is typically brought in for.
- What can Restate do that Splunk Enterprise Security cannot?
- Restate covers Durable execution, Virtual objects, Single binary runtime, Multi-language SDKs. Splunk Enterprise Security covers Security monitoring, Incident review, Risk-based alerting, Threat intelligence.
Answered from the vendors’ own pages
Restate: Is Restate open source?
The SDKs are MIT. The runtime is under a Business Source Licence, which permits self-hosting but not offering it as a competing service.
Splunk Enterprise Security: How much does Splunk Enterprise Security cost?
Splunk Enterprise Security pricing is not published. The product is available in Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition with UEBA, SOAR, and Automated Threat Analysis. Customers must contact Splunk sales for pricing quotes on either edition.
SourceRestate: How does it compare with Temporal?
Same problem, different shape: one Rust binary with embedded storage instead of a server plus database plus workers, and lower per-step latency.
Splunk Enterprise Security: What editions of Splunk Enterprise Security are available?
Splunk Enterprise Security offers Essentials Edition with threat detection, investigation, and response capabilities, and Premier Edition which adds UEBA (User and Entity Behavior Analytics), SOAR (Security Orchestration, Automation and Response), and Automated Threat Analysis.
SourceRestate: Is there a free tier?
Yes, fifty thousand durable actions a month on Restate Cloud with no card required.
Restate: Which languages are supported?
TypeScript, Java, Kotlin, Go, Python and Rust.
Related pages
More on Splunk Enterprise Security
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